TISSUE LANDMARKS Flashcards
The highest bony point on the upper margin of external auditory meatus.
PORION (PO)
The most anterior point midway between the frontal and nasal bones on the fronto-nasal suture.
NASION (NA)
The lowest point on the inferior bony margin of the orbit
ORBITALE (OR)
The point represented the midpoint of the pituitary fossa or sella turcica. It is a constructed point in the mid sagittal plane
SELLA
It is the deepest point in the midline between the anterior nasal spine and alveolar crest between the two central incisors.
POINT A
It is the deepest point in the midline between the alveolar crest of mandible and the mental process.
POINT B
It is the median point of anterior margin of foramen magnum
BASION
The highest point at the post condylar notch of the occipital bone.
BOLTON POINT
It is the anterior tip of the sharp bony process of the maxilla in the midline of the lower margin of anterior nasal opening.
ANTERIOR NASAL SPINE
It is a constructed point at the junction of the ramal plane and the mandibular plane.
GONION
It is the most anterior point of the bony chin in the median plane.
POGONION
It is the most inferior midline point on the mandibular symphysis
MENTON
It is the most antero-inferior point on the symphysis of the chin
GNATHION
It is a point at the junction of the posterior borde of ramus and the inferior border of the basilar part of the occipital bone.
ARTICULARE
The most superior point on the head of the condyle.
CONDYLION
The lowest and most anterior point on the alveolar bone in the midline, between the upper central incisors. It is also called Supradentale
PROSTHION
The intersection of a continuation of the anterior wall of the pterygo-palatine fossa and the floor of the nose, marking the distal limit of the maxilla.
POSTERIOR NASAL SPINE
It is the most prominent point of the forehead in the mid sagittal plane.
GLABELLA
It is the lateral terminus of the oral slit on the outer corner of the mouth.
CHELION
The point where the lowest border of the nose meets the outer contour of the upper lip.
SUBNASALE
It is the deepest point in the concavity of the soft tissue contour of the root of the nose.
NASION SOFT TISSUE
The most prominent point of the nose.
PRONASALE
It is the intersection of the lower border of the nose and the outer contour of the upper lip.
SUBNASALE
The median point in the upper margin of the upper membranous
LABRALE SUPERIUS
The median point in the lower margin of the lower membranous lip.
LABRALE INFERIUS
It is the point of the greatest concavity in the midline of the upper lip.
SUPERIOR LABIAL SULCUS
It is the lowest point of the upper lip
STOMION SUPERIUS
It is the highest point of the lower lip
STOMION INFERIUS
It is the midpoint between stomion superius and stomion inferius.
STOMION
It is the most prominent point on the soft tissue contour of the chin.
POGONION SOFT TISSUE
It is a constructed point at the intersection of a vertical co-ordinate from menton and the inferior soft tissue contour of the chin.
MENTON SOFT TISSUE
